A Novel Rotation-Structure Based Stick-Slip Piezoelectric Actuator with High Consistency in Forward and Reverse Motions

Tang, Jizhou; Wei, Jingsong; Wang, Yuming; Xu, Zhi; Huang, Hu

doi:10.3390/act10080189

Cited by 7 publications

(3 citation statements)

References 29 publications

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“…Recently, to enhance the controllability of positioning with direction-dependent step sizes, many piezoelectric inertia-drive-type motor structures, where two piezoelectric elements are embedded in a stator [11][12][13][14][15][16][17][18][19][20][21][22][23][24], have been developed. To achieve the same motion in both directions, a sawtooth signal actuates the piezoelectric elements one at a time.…”

Section: Introductionmentioning

confidence: 99%

Impact Force Analysis in Inertia-Type Piezoelectric Motors

Koç¹,

Delibas²

2023

Actuators

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In an inertia-type motor, a piezoelectric multilayer actuator is espoused to a transient vibration velocity as high as 1.0 m/s during slip time. This vibration velocity makes the inertia-type motors dynamic but not quasi-static. We propose a kinetic model to describe the condition under which slippage can occur between a slider and a stator. The transient current absorbed by the multilayer actuators in a stator during slip time defines the slippage behavior of the slider. A new thickness-mode force factor expression (A33), which is a relation between the transient current and the transient vibration velocity, is described in electrical domain. Impact force acting on a friction coupler produced by the actuators in the stator is proportional to the rate of change in the transient current during the sliding time. Additionally, we present the structure and characteristics of a two-phase inertia-drive-type piezoelectric motor, on which the proposed model was evaluated. Driving the multilayer actuators with truncated and mirrored sawtooth signals enhances the system dynamics. As one actuator expands and the other shrinks, their respective hysteretic nonlinearities are canceled. The motor operating frequency can be as great as 30 kHz and typically load characteristics are unloaded velocity greater than 16.0 mm/s and generated force higher than 3.0 N.

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Section: Introductionmentioning

confidence: 99%

Impact Force Analysis in Inertia-Type Piezoelectric Motors

Koç¹,

Delibas²

2023

Actuators

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“…The piezoelectric actuator has the advantages of a flexible structure design, no electromagnetic interference, a fast response speed and no reducer [1][2][3][4][5][6]. Therefore, it has attracted more and more attention from researchers and is widely used in aerospace, military, robotics, medical and other fields [7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Research on the Influence of Friction Pairs on the Output Characteristics of the Piezoelectric Ultrasonic Actuator

Deng¹,

Cheng²,

Guan³

et al. 2022

Actuators

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The piezoelectric ultrasonic actuator is driven by the friction coupling between the stator and mover. Its friction pairs are very important, but there are few studies on the long-term output stability. Therefore, zirconia (ZrO2) is selected as a stator material to form friction pairs with four different wear-resistant materials: silicon nitride (Si3N4), ZrO2, bearing steel (GCr15) and polyether ether ketone (PEEK). Experiments show that the friction pair composed of ZrO2-Si3N4 is the best, and the attenuation percentage of the speed from the initial state to the end state in the speed rising stage of 50 m is 3.66%. A linear piezoelectric platform is developed based on the best friction pair; a maximum speed of 426.2 mm/s and a resolution of 85 nm are achieved.

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“…Trapezoid [24,25] and triangular [26] compliant mechanisms were also employed in the design of the PMP actuators. Apart from that, the PMP actuators were widely studied based on other different structures such as Z-shaped [27], L-shaped [28], X-shaped [29], arc-shaped [30] etc.…”

Section: Introductionmentioning

confidence: 99%

A new symmetrical Z-shaped compliant linear actuator based on parasitic motion principle

Xie¹,

Li²,

Cheung³

2022

Smart Mater. Struct.

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To meet the demand of designing piezoelectric actuators with long working stroke and high resolution, a new parasitic motion principle (PMP) linear actuator based on the symmetrical Z-shaped compliant mechanism was proposed in this paper. The mechanism design and the operation principle of the proposed linear actuator were elaborated. The theoretical model of the symmetrical Z shaped compliant mechanism deformation was established, and was verified by the simulation analysis. Experimental studies were conducted on a manufactured prototype to investigate the performances of the proposed linear actuator. The results indicate that a linear actuator with bi-directional motion can be achieved, which has a resolution of 106 nm in the forward direction and 84 nm in the reverse direction. Under the locking force of 0.8 N, the maximum speed of 270 µm s−1 was reached, when the amplitude and the frequency of the driving voltage were set to 60 V and 650 Hz. It is also noted that the proposed linear actuator can work with a loading capacity of 25 g. This study has provided an alternative way for the development of a PMP linear actuator with bi-directional motion.

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A Novel Rotation-Structure Based Stick-Slip Piezoelectric Actuator with High Consistency in Forward and Reverse Motions

Cited by 7 publications

References 29 publications

Impact Force Analysis in Inertia-Type Piezoelectric Motors

Impact Force Analysis in Inertia-Type Piezoelectric Motors

Research on the Influence of Friction Pairs on the Output Characteristics of the Piezoelectric Ultrasonic Actuator

A new symmetrical Z-shaped compliant linear actuator based on parasitic motion principle

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